San Mateo Office Park to Be Replaced by 256 Homes

Planning commission advances proposal to convert aging Bayshore Commons office campus into new residential neighborhood.

Published on Feb. 19, 2026

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The San Mateo Planning Commission unanimously voted to advance a proposal to demolish the Bayshore Commons office park and replace it with 256 for-sale homes, including 38 moderate-income units. The 14.5-acre site near Highway 101 and Caltrain will be redeveloped with 192 townhome-style condos and 64 single-family houses.

Why it matters

This project is part of a broader wave of office-to-housing conversions in San Mateo, as the city works to meet state-mandated housing targets. While the proposal leans heavily toward market-rate homeownership, it highlights the city's efforts to encourage denser development near transit hubs.

The details

The plan calls for clearing seven three-story office buildings and a single-story commercial building to make way for the new residential neighborhood. Homes will have two-car attached garages, and the development will include a 0.4-acre central park. The project is being processed under state housing laws intended to speed up residential projects, including SB 330, the Housing Crisis Act.

  • The formal planning application (PA-2025-029) was submitted in April 2025.
  • The SB 330 preliminary application was deemed complete by the city in December.

The players

B9 Sequoia Bayshore Owner LP

The applicant for the development project.

Margaret Williams

A planning commissioner who called the project a great use of an underutilized site.

Seema Patel

The planning commission chair, who said she was a little bit disappointed the proposal did not go denser.

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What they’re saying

“We must not let individuals continue to damage private property in San Francisco.”

— Robert Jenkins, San Francisco resident (San Francisco Chronicle)

“Fifty years is such an accomplishment in San Francisco, especially with the way the city has changed over the years.”

— Gordon Edgar, grocery employee (Instagram)

What’s next

The project must still move through the rest of the city's review process, including design refinements, additional permitting, and any remaining hearings or approvals staff determine are needed.

The takeaway

This project is part of a broader trend in San Mateo of converting underutilized office space into much-needed housing, including a mix of market-rate and affordable units. The city's efforts to encourage denser development near transit hubs are helping drive these office-to-housing conversions.